27. Thus we see that man has had to change his idea of existence continually in line with his ability to uncover more and more the shining guidelines of Truth which, through the ages, have been hidden in all concepts of existence, so that with each new concept there was one veil less, and more and more Truth could shine through. Closer observation of these various ideas reveals that they are actually fundamental truths, for each one of them is like a description of what people were capable of observing about life itself at that particular point of time. The fact that they later acquired abilities to see it in finer detail could not erase the previous viewpoints; for if we suddenly lost the abilities and concepts developed since then, we would find ourselves once more at the old standpoint, and then recognize life only under the corresponding outdated concept. These ideas of life can be compared with descriptions of a town, given by a person standing at various distances from it. The picture of this town will obviously have the clearest details in that description made from the shortest distance, and be most unclear when it is made from the farthest distance. And at the same time we can understand that although these descriptions do differ in clarity, they do not, after all, differ in constituting truths in themselves, for each of them gives a description of a view of the town from the distance in question. In this way the idea of existence at any point of time constitutes a certain truth based on that special viewpoint from which it is observed, and the total sum of all ideas of existence will therefore represent a constant growing scale of clarity the further one advances on evolution's eternal journey.